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authorChristopher Faylor <me@cgf.cx>2000-10-31 23:14:29 +0000
committerChristopher Faylor <me@cgf.cx>2000-10-31 23:14:29 +0000
commitb12796a06d220e56474d2b28158fda9a193d9f37 (patch)
tree1333fe686fd71dd00c822095dc09969cd59a6c4f /winsup
parent772e2322bd066c72b8af0f82f82c51306088bacc (diff)
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* path.h (has_exec_chars): Standard function for checking for executable magic
numbers. * path.cc (symlink_info::check): Use the above function. * fhandler.cc (fhandler_disk_file::open): Ditto.
Diffstat (limited to 'winsup')
-rw-r--r--winsup/cygwin/ChangeLog7
-rw-r--r--winsup/cygwin/fhandler.cc3
-rw-r--r--winsup/cygwin/path.cc9
-rw-r--r--winsup/cygwin/path.h9
4 files changed, 22 insertions, 6 deletions
diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index c3fd690..dd1e1aa 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,10 @@
+Tue Oct 31 18:12:56 2000 Christopher Faylor <cgf@cygnus.com>
+
+ * path.h (has_exec_chars): Standard function for checking for
+ executable magic numbers.
+ * path.cc (symlink_info::check): Use the above function.
+ * fhandler.cc (fhandler_disk_file::open): Ditto.
+
Tue Oct 31 17:57:52 2000 Christopher Faylor <cgf@cygnus.com>
* path.cc (_readlink): Return ENOENT when file does not exist.
diff --git a/winsup/cygwin/fhandler.cc b/winsup/cygwin/fhandler.cc
index 811b038..d7015b7 100644
--- a/winsup/cygwin/fhandler.cc
+++ b/winsup/cygwin/fhandler.cc
@@ -1227,8 +1227,7 @@ fhandler_disk_file::open (path_conv& real_path, int flags, mode_t mode)
/* FIXME should we use /etc/magic ? */
magic[0] = magic[1] = magic[2] = '\0';
ReadFile (get_handle (), magic, 3, &done, 0);
- if ((magic[0] == ':' && magic[1] == '\n') ||
- (magic[0] == '#' && magic[1] == '!'))
+ if (has_exec_chars (magic, done))
real_path.set_exec ();
if (!(flags & O_APPEND))
SetFilePointer (get_handle(), 0, 0, FILE_BEGIN);
diff --git a/winsup/cygwin/path.cc b/winsup/cygwin/path.cc
index 7899a05..9303219 100644
--- a/winsup/cygwin/path.cc
+++ b/winsup/cygwin/path.cc
@@ -2319,11 +2319,12 @@ symlink_info::check (const char *in_path, const suffix_info *suffixes)
else
{
/* Not a symlink, see if executable. */
- if (!(pflags & PATH_ALL_EXEC) && got >= 2 &&
- ((cookie_buf[0] == '#' && cookie_buf[1] == '!') ||
- (cookie_buf[0] == ':' && cookie_buf[1] == '\n') ||
- (cookie_buf[0] == 'M' && cookie_buf[1] == 'Z')))
+ if (!(pflags & PATH_ALL_EXEC) &&
+ has_exec_chars (cookie_buf, got))
+{
+debug_printf ("setting exec flag");
pflags |= PATH_EXEC;
+}
close_and_return:
CloseHandle (h);
goto file_not_symlink;
diff --git a/winsup/cygwin/path.h b/winsup/cygwin/path.h
index 14367c7..70ec2d2 100644
--- a/winsup/cygwin/path.h
+++ b/winsup/cygwin/path.h
@@ -122,6 +122,15 @@ const char * __stdcall find_exec (const char *name, path_conv& buf, const char *
#define isdrive(s) (isalpha (*(s)) && (s)[1] == ':')
+static inline bool
+has_exec_chars (const char *buf, int len)
+{
+ return len >= 2 &&
+ ((buf[0] == '#' && buf[1] == '!') ||
+ (buf[0] == ':' && buf[1] == '\n') ||
+ (buf[0] == 'M' && buf[1] == 'Z'));
+}
+
/* cwd cache stuff. */
class muto;